不同甘薯品种抗旱性评价及耐旱指标筛选

张海燕,解备涛,汪宝卿,董顺旭,段文学,张立明

Evaluation of drought tolerance and screening for drought-tolerant indicators in sweetpotato cultivars

Hai-Yan ZHANG,Bei-Tao XIE,Bao-Qing WANG,Shun-Xu DONG,Wen-Xue DUAN,Li-Ming ZHANG

表4 干旱胁迫对甘薯蔓长的影响

Table 4 Effects of drought stress on vine length in sweetpotato (cm)

品种 Cultivar 栽后60 d 60 DAP 栽后100 d 100 DAP 对照Control 干旱Drought 相对值RV 对照Control 干旱Drought 相对值RV 2012 徐薯18 Xushu 18 105.64 c 69.56 cd 0.66 a 148.95 f 81.89 c 0.55 ab 济薯15 Jishu 15 91.75 d 59.45 g 0.65 ab 163.79 e 81.45 c 0.50 cd 济薯21 Jishu 21 119.34 b 78.13 b 0.65 ab 157.57 e 90.32 b 0.57 a 济徐23 Jixu 23 117.56 b 73.56 bc 0.63 b 164.32 e 92.31 b 0.56 ab 济薯25 Jishu 25 114.56 b 77.45 b 0.68 a 185.64 c 104.53 a 0.56 ab 北京553 Beijing 553 98.46 d 64.13 ef 0.65 ab 138.45 g 75.88 d 0.55 ab 郑薯20 Zhengshu 20 107.23 c 64.12 ef 0.60 cd 142.56 fg 74.79 d 0.52 bc 烟薯25 Yanshu 25 131.89 a 78.56 b 0.60 cd 201.76 b 91.86 b 0.46 de 济薯22 Jishu 22 108.76 c 67.26 de 0.62 cd 158.29 e 84.56 c 0.53 bc 济薯26 Jishu 26 134.56 a 84.56 a 0.63 b 213.22 a 101.23 a 0.47 d 凌紫 Ayamaraski 97.56 d 56.46 g 0.58 d 119.56 h 63.56 e 0.53 bc 济薯18 Jishu 18 105.46 c 61.23 fg 0.58 d 188.45 c 81.46 c 0.43 e 济紫薯1号 Jizishu 1 112.67 bc 66.76 de 0.59 d 165.45 e 86.35 bc 0.52 bc 济紫薯2号 Jizishu 2 106.87 c 63.58 ef 0.59 d 138.45 g 73.69 d 0.53 bc 济紫薯3号 Jizishu 3 112.46 bc 69.56 cd 0.62 cd 176.45 d 90.23 b 0.51 bc 2013 徐薯18 Xushu 18 91.81 e 57.18 cd 0.62 b 133.39 e 70.69 de 0.53 bc 济薯15 Jishu 15 88.08 ef 50.35 e 0.57 cd 147.64 c 68.59 de 0.46 e 济薯21 Jishu 21 94.97 de 63.48 bc 0.67 a 141.67 d 79.11 b 0.56 ab 济徐23 Jixu 23 103.26 bc 70.02 a 0.68 a 152.15 c 87.02 a 0.57 a 济薯25 Jishu 25 104.92 bc 60.04 bc 0.57 cd 148.91 c 78.24 b 0.53 bc 北京553 Beijing 553 109.98 b 65.71 ab 0.60 bc 158.61 b 78.75 b 0.50 cd 郑薯20 Zhengshu 20 83.34 f 48.12 f 0.58 bc 127.26 f 62.20 e 0.49 d 烟薯25 Yanshu 25 121.39 a 63.90 bc 0.53 d 184.09 a 78.59 b 0.43 f 济薯22 Jishu 22 94.81 de 54.97 de 0.58 bc 139.88 d 71.58 d 0.51 c 济薯26 Jishu 26 99.58 cd 59.58 cd 0.60 bc 135.09 e 74.58 cd 0.55 ab 凌紫 Ayamaraski 84.06 f 44.60 f 0.53 d 105.18 g 51.42 f 0.49 d 济薯18 Jishu 18 101.24 c 58.78 cd 0.58 bc 151.31 c 69.60 de 0.46 e 济紫薯1号 Jizishu 1 98.56 cd 52.57 e 0.53 d 149.23 c 73.30 cd 0.49 d 济紫薯2号 Jizishu 2 93.00 de 56.24 de 0.60 bc 127.55 f 65.94 e 0.52 bc 济紫薯3号 Jizishu 3 98.36 cd 61.02 bc 0.62 bc 159.79 b 77.02 bc 0.48 de